Hydraulic ram.



No. 673,764. Patented May 7, I90l. W. L. DEMING.

HYDRAULIC RAM.

(Application filed Max. 20, 1900.)

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(Application filed Mar. 20, 1900.)

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,, Unitas STATES PATENT OFFICE.

WILLIAM L. DEMING, OF SALEM, OHIO, ASSIGNOR TO THE DEMING COMPANY, OF SAME PLACE.

HYDRAULIC RAIVI.

SPECIFICATION forming part of Letters Patent No. 673,764, dated May 7, 1901.

Application filed March 20, 1900. Serial No. 9,393. (No model.)

To all whom it may concern.-

Be it known that I, IVILLIAM L. DEMING, a citizen of the United States, residing at Salem, in the county of Oolumbiana and State of Ohio, have invented certain new and useful Improvements in Hydraulic Rams; and I do hereby declare the following to be a full, clear, and exact description of theinvention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to automatic pumping apparatus, and has particular reference to hydraulic rams for elevating water and to certain improvements in their structural arrangement whereby the general efficiency of the ram is increased and its durability inso red. With these objects in View the valves of the present construction are centralized and are located entirely outside of the airchamber. They are also accessibly located beneath a single removable cap-plate.

Another feature of theinvention resides in a fresh-air duct located between said valves and operating in conjunction with them to augment and maintain pressure in the airchamber of the ram with each stroke of its impetus-valve.

Still another feature of invention is to be found in mechanism for adjusting and regulating the prescribed throw of the impetusvalve and in means for maintaining such adjustment against accidental displacement.

The invention will be hereinafter described, and particularly pointed out in the claims following.

In the accompanying drawings, which form part of this specification and whereon the same letters of reference indicate corresponding parts in the several views, Figure 1 is a side elevation of theinvention in position for use. Fig. 2 is a front elevation of same. Fig. 3 is a vertical central section of the improved ram, showing the interior of its air-pressure chamber, drive pipe, and valve-ohambers, also the operating-valves and means for controlling their action. Figs. tand 5 are fragmentary detail views showing, respectively, a side elevation and top plan view of a modified form of regulating mechanism for the impetus-valve.

Reference being had to the drawings and letters thereon, A indicates the pressurechamberof myimproved ram,B the lowermost underlying end of the drive-pipe, and C an enlargement at extremity of said pipe 13, whereupon or wherein are located both valves of the invention, as will hereinafter more fully and at large appear. Adjacent to the extremity or outlet at of said drive-pipe B the enlargement O is broken by an upwardly-projecting supply-port D, which in turn is guarded by a discharge valve E, the latter preferably secured to and hinging upon a suitable packing (3, covering the surface of said enlargement. served that neither pipe 13 nor port D have direct communication with the pressure-chamber A. Beyond valve E, however, there is a port 0, which opens directly into the air-chamber. Through this the water-supply finds its way to the pressure-chamberA after passing valve E, and from thence is delivered to the point of utilization by one or both of the discharge-pipes F F, as will be set forth in a statement of operation to follow. Covering the otherwise open end of enlargement O is a single removable cap G, by preference bolted in place, as shown, immediately above the packingb and having cast or otherwise formed therein a chamber d, constituting a housing for valve E and serving to establish communication between port D and port 0 when said valve is raised.

Upon cap-plate G, preferably at its upper end, is pivoted an oscillating valve-stem 6, bearing a longitudinally-movable adj ustingweight 6, and at its lower extremity the impetus-valve H of the invention, which valve contacts upon each upward stroke with a suitable valve-seat f, secured in cap Gr, im-' mediately below the outlet or waste port 9. Upon stem 6, at a median point in its length, is a flanged boss I, perforated, as shown by Figs. at and 5, or preferably indented upon its sides by grooves h h, as shown by Figs. 1, 2, and 3. In said boss I is mounted a limiting-screw J, its lower end adapted to contact with a cushion 2' and its upper end bearing a T-shaped head K. The head K is in reciprocal relation with a two-pronged metallic clip L, of relatively stiff spring-wire, the prongs whereof rest in grooves h h, afore- By reference to Fig. 3 it will be ob therein.

said, to prevent an accidental phange in adjustment of screw J and a consequent change in the stroke of the impetus-valve H.

The upper edge of outlet a at the extremity of drive-pipe B is indented by a depression or fresh-air passage M, which, as shown by Fig. 3, terminates in close proximity to supply-port D and is closed by the overlying portion of packing b, except when the latter is lifted at this point by an upward throw of valve E, as clearly indicated by dotted lines in Fig. 3, for the purpose of introducing air to chamber A with each stroke of the impetus-valve H.

This being the generally preferred construction of my invention, its use, briefly stated, is as follows: Presuming the present invention to be suitably located for action and thatthe usual requirements as to a source of water-supply, its natural fall, the length and inclination of drive-pipe, and elevation of the distributing-tank all to be present, the general principle of operation is then very similar to that of the ordinary ram. Water entering pipe B from an elevated spring or other source of supply flows through outletport g until there is sufficient accumulated pressure to close the im petus-valve H. This accomplished, the water in pipe B finds another outlet through port D, lifting valve E, as shown by dotted lines, Fig. 3, in its passage to chamber (1, and thence through port 0 to pressure-chamber A. In the meantime air accumulates after each stroke of valve H in passage M, which it naturally enters through the upper side of port g. The lifting of discharge-valve E immediately frees the air previously trapped in said passage M, so that it is driven by force, of the water into pressure-chamber A for the purpose of augmenting and maintaining the air-pressure The expansive qualities of the air in chamber A serve to constantly force water therefrom into and through dischargepipe F to an elevated distributing-tank in the usual manner, from whence it may be drawn to points of utilization.

Obviously the resistance offered by impetusvalve H may be regulated according to requirements by adjustment of weight (2 upon stem 6, and the stroke of said impetus-valve may be limited to a nicety by adjustment of the limit-screw J. The last-mentioned adjustment when necessary is conveniently accomplished by first withdrawing clip L from the indentations h h; secondly, by rotating said limit-screw through the agency of said clip L until the desired adjustment is obtained, and finally replacing the clip L in the depressions h h to prevent the possibility of accidental'displacement of the screw, which otherwise might be worked up by continual pounding of valve H, the stroke of which it serves to limit.

Having thus described my invention, what I claim, and desire to secure by Letters Patent, is-

above that of the impetus-valve, and an air-- passage fed from the impetus-valve and relieved through the discharge-valve, substantially as described.

2. In a hydraulic ram the combination with a drive-pipe, a pressure-chamber, an impetusvalve, a discharge-valve located in a plane above that of the impetus-valve, and an upwardly extending air passage located between said valves adapted to be fed by the former and exhausted through the latter,substantially as described.

8. In a valve the combination with a valvestem and a limit -screw for regulating the stroke thereof, of a clip adjustable longitudinally upon the limit-screw said clip having an enlarged protruding end and dependent prongs, the latter for engaging depressions in the stem aforesaid, substantially as described.

4. In a valve the combination witha valvestem and a limit-screw for regulating the stroke thereof, of a spring-clip adjustable longitudinally upon the limit-screw said clip having an enlarged protruding end and dependent prongs with flaring extremities, said prongs for engaging depressions in the stem aforesaid, substantially as described.

5. In an impetus-valve for hydraulic rams, the combination with a valve-stem bearing an adjusting-weight, of a limit-screw for regulating the stroke of said valve, a spring-clip longitudinally movable in the head of said screw, and depressions in the valve-stem for receiving the ends of said clip, substantially as described.

6. In an impetus-valve for hydraulic rams, the combination with a valve-stem bearinga flanged boss, of a limit-screw in threaded relation with said boss for regulating the stroke of the valve, a bifurcated spring-clip longitudinally movable in the head of said screw, and depressions in the flanged boss for receiving the ends of the clip aforesaid, substantially as described.

7. In a hydraulic ram the combination with a drive-pipe having an enlarged discharge end containing waste and discharge ports, a single removable cap-plate covering said enlargement and ports, impetus and discharge valves removable with said cap-plate, and a pressure-chamber,substantially as described.

8. In a hydraulic ram the combination with a drive-pipe having an enlarged discharge end containing waste and discharge ports, a single removable cap-plate covering said enlargement and ports, impetus and discharge valves removable with the cap-plate, a valvechamber formed in said cap-plate for housing the discharge-valve, and a pressure-chamber, substantially as described.

9. In a hydraulic ram the combination with a drive-pipe having an enlarged discharge end containing waste and discharge ports, a

single removable cap-plate covering said enlargement and ports, impetus and discharge Valves removable withthe cap-plate, a valveehamber formed in the cap-plate for housing the discharge-valve, a, pressure-chamber, and a port connecting said valve and pressure chambers, substantially as described.

In testimony whereof I subscribe my signature in presence of two Witnesses.

WVILLIAM L. DEMING.

Witnesses:

W. O. BOYLE,

F. J. MULLINS. 

